I am stuck on this problem.... anyone can help? It askes to evalate...Evaluate 3(10x − y) − 9(x + y2) for x = 2 and y = −5.

Question

Evaluate

3(10x − y) − 9(x + y2)

for

x = 2

and

y = −5.

Answer 1

Evaluate 3(10x − y) − 9(x + y2) for x = 2 and y = −5.

Substitute the given values for x and y into the expression.

3(10*2 - (-5)) - 9(2 + (-5)^2))

Work out the contents of the bracketed terms.

3(20 + 5) - 9(2 + 25)

3*25 - 9*27

75 - 243

-168

Answer: The expression evaluates to: -168